Finding the Fourth Proportional to 7,031.48, 9,703.50 and 3,887.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,031.48 : 9,703.50 = 3,887.72 : x
2. Step 2: Convert to fraction form
   7,031.48/9,703.50 = 3,887.72/x
3. Step 3: Cross multiply
   7,031.48x = 9,703.50 × 3,887.72
4. Step 4: Simplify right side
   7,031.48x = 37,724,491.02
5. Step 5: Solve for x
   x = 37,724,491.02/7,031.48
6. Step 6: Final answer
   x = 5,365.09